Finding the Fourth Proportional to 74,499.19, 102,808.88 and 40,965.19
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Solution
The fourth proportional to 74,499.19, 102,808.88 and 40,965.19 is: 56,531.96
Step by Step Solution
- Step 1: Write the proportion equation
74,499.19 : 102,808.88 = 40,965.19 : x - Step 2: Convert to fraction form
74,499.19/102,808.88 = 40,965.19/x - Step 3: Cross multiply
74,499.19x = 102,808.88 × 40,965.19 - Step 4: Simplify right side
74,499.19x = 4,211,584,994.66 - Step 5: Solve for x
x = 4,211,584,994.66/74,499.19 - Step 6: Final answer
x = 56,531.96
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.